The company’s first wearable device combines noise-cancelling headphones with a unique air-purifying system that projects filtered air to the user. The British technology firm said the headphones have been created in response to growing concerns about air and sound pollution in urban areas. Compressors in each ear draw air through built-in filters and project two streams of purified air to the wearer’s nose and mouth through the visor. Does purifying headphones really help to reduce noise pollution ?

